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Figure 4 graphic for NPPSD

By Alaska Science Center
Map of seabird survey observations from 1973 - 1982 used to create the first pelagic seabird database. Cells are 50 × 50 km
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Detailed Description

Map showing area sampled during time periods 1973–1982.  Cells are 50 × 50 km. Seabird survey observations from 1973 - 1982 used to create the first pelagic seabird database.

Sources/Usage

Public Domain.

U.S. Geological Survey